| All Patents in class 451/357 | 
			    	Patents 1 - 
					15
					of 18
        | 
| Number | Date | Patentee | Title | Type | 
| 2,270,309 | Jan. 20, 1942 | O.A. Kehle | Rubbing machine | handheld power sanders | 
| 2,395,537 | Feb. 26, 1946 | S.A. Crosby | Rubbing machine | handheld power sanders | 
| 2,639,564 | May 26, 1953 | K.C. Atkin | Oscillating sander | handheld power sanders | 
| 2,683,336 | Jul. 13, 1954 | S.E. Scace | Rubbing machine | handheld power sanders | 
| 2,774,292 | Dec. 18, 1956 | E. Hartmann | Earth conditioning device |  | 
| 2,796,704 | Jun. 25, 1957 | F.W. Moore | Orbital sander | handheld power sanders | 
| 2,885,833 | May 12, 1959 | G.M. Neff | Hand held sanding and abrading machine | handheld power tools | 
| 2,918,761 | Dec. 29, 1959 | H.E. Earl, R.W. Hilgers | Rubbing machine |  | 
| 3,205,622 | Sep. 14, 1965 | T.J. Leveque | Rotatable grinding and surfacing tool | handheld power sanders | 
| 3,287,859 | Nov. 29, 1966 | T.J. Leveque | Rotatable grinding and surfacing tool | handheld power sanders | 
| 3,345,784 | Oct. 10, 1967 | H.K. Leach, C.R. Stelljes | Orbital finishing sander | handheld power sanders | 
| 4,802,310 | Feb. 07, 1989 | R.W. Holmes | Sander Attachment | handheld power sanders | 
| 4,854,085 | Aug. 08, 1989 | P.W. Huber | Random orbital sander | handheld power sanders | 
| 5,823,862 | Oct. 20, 1998 | R.A. Heidelberger | Dual action sander | handheld power sanders | 
| 6,206,771 | Mar. 27, 2001 | F.D. Lehman | Balancer for orbital abrading machine | handheld power sanders |